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All results from a given calculation for BrCN (Cyanogen bromide)

using model chemistry: CCSD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at CCSD/6-31+G**
 hartrees
Energy at 0K-2662.598108
Energy at 298.15K 
HF Energy-2662.186700
Nuclear repulsion energy124.667734
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CCSD/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2300 2148 9.67      
2 Σ 585 546 0.81      
3 Π 376 351 1.90      
3 Π 376 351 1.90      

Unscaled Zero Point Vibrational Energy (zpe) 1817.9 cm-1
Scaled (by 0.9338) Zero Point Vibrational Energy (zpe) 1697.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CCSD/6-31+G**
B
0.13618

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31+G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.139
N2 0.000 0.000 -2.307
Br3 0.000 0.000 0.657

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.16861.7952
N21.16862.9638
Br31.79522.9638

picture of Cyanogen bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N2 C1 Br3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability